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Showing 1 to 20 of 22 for “"cubic crystal"”.
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Spin-lattice relaxation of tetravalent protactinium in a cubic crystal
Restriction data tranferred 2014-07-01T11:12:54-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis
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Surface Self-Diffusion on a Face Centered Cubic Crystal: An Atomic View
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-05T21:24:44Z No. of bitstreams: 1 1974_ayrault.pdf: 7179057 bytes, checksum: 452eb9fd61bee59256efbf41d71fbda0 (MD5)
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The elastic stress field produced by a point force in a cubic crystal
… of displacement which converges for all stable cubic crystals. The convergence of the series giving the displacement due to apoint force is very slow for lithium which is on the verge of 2c:44 0 a phase change [equation] at 78. K Detailed calculations of stress fields have been made for aluminum …
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Anharmonic Helmholtz free energy to O(lambdaâ ´) in the non- leading term approximation /|nby Leslie Wilk. -- 260 St. Catharines, Ont. : [s. n.],
… term approximation for a monatomic facecentred cubic crystal with nearest neighbour c entralforce interactions. The numbers obtained were seen to vary by a s much as 47% from thos e obtai.ned in the leading term approximati.on,indicating that the latter approximati on is not in general very …
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Sodium Fluoride Hopper Crystals
… and use of fluoride. Faster dissolving crystals of NaF in a dentifrice could improve the efficacy of current preventative treatments. In this study, crystals of sodium fluoride with a high surface area to volume ratio were prepared by the addition of an aqueous solution of sodium …
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Nucleation and Growth of Order in Cu(3)Au (111) Films
During epitaxial growth of (111) face-centered cubic crystal films, such as disordered $\rm Cu\sb3Au,$ there are two possible ways that successive layers can be laid down, leading to two types of stacking domains. However, a small vicinal miscut $(0.5\sp\circ {-}1\sp\circ )$ of the crystal surface …
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Micromagnetic modelling and magneto-optical characterization of Ni/V2O3 hybrid structures
… were setup to replicate this. Nickel is a cubic crystal with easy axes <111>, hard axes <100> and medium axes <110>. In the simulations an external magnetic field was applied and then rotated in-plane as was done in the MOKE measurements. The result are hysteresis loops as a function of …
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Experimental and DFT study on selective oxidation of 5-Hydroxymethyl furfural over cadmium sulfide catalyst
… is calculated for hexagonal wurtzite and simple cubic crystal structure of CdS catalyst which indicate capability of CdS as a catalyst for HMF oxidation.
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Object Oriented CAE Software for the Exploration and Design of Microstructures
… is used to model the microstructure of cubic materials. This model is then used to predict the macroscopic elastic and plastic properties of materials with cubic crystal symmetry and various sample symmetry including triclinic and axial—symmetric. Building on the work of …
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Magnetic and Dielectric Properties of Cu3-xNixWO6 and Cu3W1-xMoxO6
… we did not observe any distortion of the cubic crystal. Ni substitution for Cu, and Mo substitution for W, will act as a negative pressure on the lattice parameter of Cu3WO6. Magnetization measurements of Cu3-xNixWO6 indicate that all compounds undergo an antiferromagnetic phase transition …
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Morphology, structure and electronic properties of CdTe surfaces studied by scanning tunneling microscopy
… used to study the surface properties of CdTe crystals. Coupled with scanning tunneling spectroscopy (STS) and atomic force microscopy, the surface morphology, structure and electronic properties of CdTe and CdZnTe surfaces have been studied. We have systematically investigated the three low …
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Cubic phase gallium nitride photonics integrated on silicon(100) for next-generation solid state lighting
… substrates (Al2O3, SiC). Gallium nitride also crystallizes in the cubic crystal that has a higher degree of symmetry. This leads to some advantageous properties for light emitting applications: polarization-free, lower acceptor energy (200 meV), and higher hole mobility (150 cm2/V). These …
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Spin Properties of Heavy Holes in Low-Dimensional Quantum Electronic Devices
… of the in-plane 1D hole g-factor on GaAs cubic crystal anisotropies, and are able to probe the structure of the SOI to extract new information about previously unknown terms in the Hamiltonian for 1D holes. We also present preliminary Zeeman spin-splitting measurements of 1D holes on …
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Some metal complexes of dihydroxycyclobutenedione
… associated with metal-hydroxyl bridging. Crystal field calculations made from data obtained from the electronic spectra of the vanadium(III) squarate trihydrate and vanadium(III) squarate dihydrate suggest that the vanadium atoms are in an approximately cubic crystal field, Racah parameter …
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LIGHT SCATTERING FROM AMMONIA AND WATER CRYSTALS
… 2 with an approach based on Mie theory. Ammonia crystals are believed to be an important constituent of Jupiter's upper clouds, but both their shape and scattering properties were unknown at the start of this work. Ammonia crystals and water crystals were grown in a cold chamber at temperatures …
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Microstructure and Electronic Structures of Er-Doped Si Nano-particles Synthesized by Vapor Phase Pyrolysis
… and undoped Si nanoparticles have a Si diamond cubic crystal structure. Neither Er precipitation, Er oxides or Er silicides were detected in any of the samples. The Er dopant concentration was about 2 atom% for doped samples from the 3.0 and 6.0 cm ovens as determined by quantitative analysis …
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The Temperature Dependence of Second-Order Elastic Constants in Cubic Materials
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2012-01-09T19:03:49Z No. of bitstreams: 1 1972_garber.pdf: 3762105 bytes, checksum: 9761fc9c6f880570930efb1d621655a4 (MD5)
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Optoelectronic devices based on graded bandgap structures utilising electroplated semiconductors
… that CdSe and CdS semiconductors have hexagonal crystal structures and are mainly n-type in electrical conduction within the explored range of deposition potentials. The crystal structures of ZnTe thin films are hexagonal and the electroplated ZnTe thin films have both n- and p-type electrical …
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SYNTHESIS OF EFFICIENT PHOTOCATALYSTS IN EXTREME TEMPERATURE CONDITIONS FOR THE DEGRADATION OF AIR POLLUTANTS.
… enhanced durability due to its unalterable cubic crystal structure at high temperatures. Therefore, STO enables the development of more efficient systems for NOx photocatalytic reduction under LED irradiation and supports high-temperature industrial applications. This work explored various …
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On the electronic structure of layered sodium cobalt oxides
… are transition metal oxides and adopt a layered crystal structure with quasi-two-dimensional (Cu,Co)O2 layers - is an important aspect of the research activities. In contrast to the HTSC cuprates however, the CoO2 layers consist of edge sharing CoO6 octahedra which are distorted in such a way …
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